I would like to share with you my session that I have performed on multiple events: DrupalCon Munich 2012, UA Mobile 2012, Drupal Camp Kyiv 2012, Drupal Camp Lviv 2012, Drupal Cafe Donetsk #1.
Here is a video from DrupalCon Munich 2012 (English, with Fabian):
In this blog post I will answer on the questions above and demonstrate you simple mobile web application that allows to view and save textual posts. There is a Python backend, that stores information in the MongoDB and communicates with a front end using REST approach. Front end is built with the Backbone.js and jQueryMobile.